"The Sentry 1 controlled five fans, featured a monochromatic screen and fit a 5.25" drive bay. The Sentry LX also controlled five fans, but featured a multi-colored display and took up two 5.25" drive bays. The new Sentry 2 combines a multi-colored LCD of the LX with the compact form of the Sentry 1 and adds a touchscreen display. Let's take a closer look!"